Delhi: Few Hours with Clean Air, Comfortable Conditions

Imagine trying to enjoy a nice day in Delhi, but the air is often dirty or the temperature isn't pleasant.

A study found that only a small portion of the year in Delhi has both clean air and comfortable weather.

Other cities, like Bengaluru, have better air quality.

To help, the study suggests using special systems called PECS in buildings.

These systems clean the air and manage temperature, which can also save a lot of energy.